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Estimate audio size CGI parameter using MPEG 2 vs 4 discrimination

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df 2020-09-07 14:40:11 +00:00
parent 74e09fa233
commit 159a5a58ad
1 changed files with 15 additions and 2 deletions
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17
webif/html/browse/audio/audio.jim
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@ -10,12 +10,24 @@ jscss audio.js
header
set s [settings]
set type [$s audiomp3descr [$s audiomp3]]
set slow [$s audiomp3]
set type [$s audiomp3descr $slow]
set rfile [cgi_get file]
set ts [ts fetch $rfile]
set dir [file dirname $rfile]
set len [$ts duration 1]
# guess output size based on video file size
set asize [$ts size]
# using slight overestimates of typical audio:video size ratio
if {[$ts get mpeglevel] eq 4} {
if {$slow} { # aac-> mp3
set asize [expr $asize*0.12]
} else { # aac-> loas
set asize [expr $asize*0.09]
}
} else { # mp2 -> mp[23] (similar)
set asize [expr $asize*0.07]
}
puts "
@ -30,6 +42,7 @@ puts "
<span class=hidden id=params
dir=\"[cgi_quote_url $dir]\"
rfile=\"[cgi_quote_url $rfile]\"
asize=\"[cgi_quote_url $asize]\"
></span>
<div id=audiodiv style=\"padding: 1em\">